Hall Effect Sensor Circuit Diagram
Consider the diagram below.
Hall effect sensor circuit diagram. A sensor can be used to trigger a timer for a specific duty. Hall effect sensor ic dn6848 from panasonic is the heart of the circuit. A hall effect sensor is a sensor which detects magnetic fields. 1 kilo ohms resistor use as a current limiter for an led you can lower value if you want an led brighter.
The circuit diagram shown here is of a hall effect switch. The dn6848 has a built in hall effect sensor schmitt trigger circuit power supply regulator and temperature compensation circuits integrated to a single chip. Hall effect sensor principles. When the magnetic flux density around the sensor exceeds a certain pre set threshold the sensor detects it and generates an output voltage called the hall voltage v h.
The simple circuit diagram can be seen below. If you want to use hall effect sensor with arduino board you must add 10 kilo ohms resistor between a positive electrode and an output of hall effect sensor to make the output from ic high 5 volts. Circuit diagram using hall effect sensor. Resistor r1 acts as a positive bias for the for the input at pin 2.
The output signal from a hall effect sensor is the function of magnetic field density around the device. The hall effect sensor we will use in this circuit is an a1302 hall effect sensor manufactured by allegro. The hall effect sensor explained above can be quickly configured through a few external parts for converting magnetic field into electrical toggling pulses for controlling a load.